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Finding the Fourth Proportional to 313,504.34, 432,639.18 and 170,267.18

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Solution

The fourth proportional to 313,504.34, 432,639.18 and 170,267.18 is: 234,970.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,504.34 : 432,639.18 = 170,267.18 : x
  2. Step 2: Convert to fraction form
    313,504.34/432,639.18 = 170,267.18/x
  3. Step 3: Cross multiply
    313,504.34x = 432,639.18 × 170,267.18
  4. Step 4: Simplify right side
    313,504.34x = 73,664,250,972.92
  5. Step 5: Solve for x
    x = 73,664,250,972.92/313,504.34
  6. Step 6: Final answer
    x = 234,970.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.